What games especially puzzle/puzzler games have you played that you considered to be basically brain-whackers/brain-whacking games?
In my case I haven’t play any of these puzzle/puzzler games but after viewing/watching a number of gameplay footages as well as walkthroughs, I can say without AND beyond a shadow of a doubt that I definitely considered them to be real, true BRAIN-WHACKERS/BRAIN-WHACKING games:
Pneuma: Breath of Life
The Talos Principle
The Witness
Portal
MIND: Path to Thalamus